Home / 3,039.80-4,192.14-1,992.44

Finding the Fourth Proportional to 3,039.80, 4,192.14 and 1,992.44

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Solution

The fourth proportional to 3,039.80, 4,192.14 and 1,992.44 is: 2,747.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.80 : 4,192.14 = 1,992.44 : x
  2. Step 2: Convert to fraction form
    3,039.80/4,192.14 = 1,992.44/x
  3. Step 3: Cross multiply
    3,039.80x = 4,192.14 × 1,992.44
  4. Step 4: Simplify right side
    3,039.80x = 8,352,587.42
  5. Step 5: Solve for x
    x = 8,352,587.42/3,039.80
  6. Step 6: Final answer
    x = 2,747.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.